Shoulder Screws, sometimes referred to as Shoulder Bolts or Stripper Bolts, get their name from the unique shoulder found between the head and the threads of the screw. Lyn-Tron manufactures Precision Shoulder Screws, so named for the high tolerance (+/-0.0005) the shoulder diameter is held to. Most commonly offered in Stainless Steel, Brass and Steel, other materials are available upon request. All common thread sizes are stocked in both Inch (4-40, 6-32, 8-32, 10-32 etc.) and Metric (M3, M3.5, M4 etc.). Precision Shoulder Screw Sizes come standard from 1/8” up to 1/2” diameters and in Metric sizes from 3mm to 10mm diameters. Contact us today to modify any of our shoulder screw dimensions to fit your specific application!